acceptable_constr_viol_tol:

"Acceptance" threshold for the constraint violation. $\;$
Absolute tolerance on the constraint violation. "Acceptable" termination requires that the max-norm of the (unscaled) constraint violation is less than this threshold; see also acceptable_tol. The valid range for this real option is $0 < {\tt acceptable\_constr\_viol\_tol } < {\tt +inf}$ and its default value is $0.01$ .